Verifiable Quotes
Happiness is a real, objective phenomenon, scientifically verifiable. That means people and whole societies can now be measured over time and compared accurately with one another. Causes and cures for unhappiness can be quantified.
Polly Toynbee
The implications of these considerations justify the statement that all empirically verifiable knowledge even the commonsense knowledge of everyday life - involves implicitly, if not explicitly, systematic theory in this sense.
Talcott Parsons